Basis of Presentation and Summary of Significant Accounting Policies (Restated) - Obligation For Claim Payment (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Restricted Cash
Obligation for claim payment	$ 46,902	$ 29,328

Carrying value as of the balance sheet date of current obligation for claim payment.

No definition available.

Name:	xela_ObligationForClaimPaymentCurrent
Namespace Prefix:	xela_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant